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I have an Intel Baytrail processor that suffers from this kernel bug: https://bugzilla.kernel.org/show_bug.cgi?id=109051 and so requires a kernel parameter of "intel_idle.max_cstate=1". I have edited /etc/default/grub to include the line: GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_idle.max_cstate=1", but when I reboot, I get:
kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=a5ea7f34-a6db-4695-8e2e-f6d8381c273e rw quiet
kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=a5ea7f34-a6db-4695-8e2e-f6d8381c273e rw quiet
I can manually edit the line at boot by pressing 'e' at the grub boot screen, in which case I end up with:
kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=a5ea7f34-a6db-4695-8e2e-f6d8381c273e rw quiet intel_idle.max_cstate=1
kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=a5ea7f34-a6db-4695-8e2e-f6d8381c273e rw quiet intel_idle.max_cstate=1
The thing that kills me is that I had this working, but accidentally torched the system, and when I reinstalled, this kernel parameter no longer gets loaded.
I'm currently on 4.7.4-1-ARCH x86_64 (as was the system I blew up).
Any thoughts?
George
Last edited by ggalt (2016-09-18 18:29:59)
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Did you generate a new grub config after editing /etc/default/grub? Do you have any other instances of grub on your system?
Mod note: not a kernel issue, moving to NC.
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Making lemonade from lemons since 2015.
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Welcome to the Arch Linux forums.
First, I don't use Grub so I am not an expert -- but -- /etc/default/grub is not processed during boot. That file is used by grub-mkconfig to produce a new /boot/grub/grub.cfg
https://wiki.archlinux.org/index.php/GR … ation_file
Note that prior to running grub-mkconfig, ensure that the boot partition really is mounted on /boot first (using the mount command)
Edit: morning afternoon WorMzy
Last edited by ewaller (2016-09-18 16:17:16)
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It was an old grub.cfg. Thanks. Dumb mistake.
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